SAXSdb — 1c3q

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Hydroxyethylthiazole kinase

Bacillus subtilis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	CHLORIDE ION × 1 2-(4-METHYL-THIAZOL-5-YL)-ETHANOL × 3 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	THIM_BACSU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 13–284； UniProt 1–272 Author chain B； PDBConstruct 13–284； UniProt 1–272 Author chain C； PDBConstruct 13–284； UniProt 1–272

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	1c3q
Deposition date deposition_date	1999-07-28
Structure title title	CRYSTAL STRUCTURE OF NATIVE THIAZOLE KINASE IN THE MONOCLINIC FORM
Keywords keywords	ALPHA-BETA, ATP BINDING, KINASE, TRANSFERASE; TRANSFERASE
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1c3q__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1c3q__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1c3q__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	28.54 Å
Rg (electron density)	27.22 Å
Total Rg	27.88 Å
Atom count	6268
Residues	852
Excluded volume	111350 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1c3q__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	Hydroxyethylthiazole kinase
Molecular weight formula_weight	29645.7 kDa
EC 编号 ec_number	2.7.1.50
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	6475

MRGSHHHHHHGSMDAQSAAKCLTAVRRHSPLVHSITNNVVTNFTANGLLALGASPVMAYAKEEVADMAKIAGALVLNIGTLSKESVEAMIIAGKSANEHGVPVILDPVGAGATPFRTESARDIIREVRLAAIRGNAAEIAHTVGVTDWLIKGVDAGEGGGDIIRLAQQAAQKLNTVIAITGEVDVIADTSHVYTLHNGHKLLTKVTGAGCLLTSVVGAFCAVEENPLFAAIAAISSYGVAAQLAAQQTADKGPGSFQIELLNKLSTVTEQDVQEWATIERVTVS

Source Source

Source organism organism	Bacillus subtilis
NCBI taxonomy ID ncbi_taxonomy_id	1423
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	2-(4-METHYL-THIAZOL-5-YL)-ETHANOL
Molecular weight formula_weight	143.2 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	207

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6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d1c3qa1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.72 — Ribokinase-like
Superfamily Superfamily superfamily	c.72.1 — Ribokinase-like
Family Family family	c.72.1.2 — Thiamin biosynthesis kinases

Domain ID domain_id	d1c3qa2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1c3qb1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.72 — Ribokinase-like
Superfamily Superfamily superfamily	c.72.1 — Ribokinase-like
Family Family family	c.72.1.2 — Thiamin biosynthesis kinases

Domain ID domain_id	d1c3qb2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1c3qc1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.72 — Ribokinase-like
Superfamily Superfamily superfamily	c.72.1 — Ribokinase-like
Family Family family	c.72.1.2 — Thiamin biosynthesis kinases

Domain ID domain_id	d1c3qc2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (3 domains)

Domain ID domain_id	1c3qA00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1190 — UDP-N-acetylmuramoyl-L-alanine:D-glutamate ligase
Homologous superfamily homologous superfamily	20 — Ribokinase

Domain ID domain_id	1c3qB00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1190 — UDP-N-acetylmuramoyl-L-alanine:D-glutamate ligase
Homologous superfamily homologous superfamily	20 — Ribokinase

Domain ID domain_id	1c3qC00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1190 — UDP-N-acetylmuramoyl-L-alanine:D-glutamate ligase
Homologous superfamily homologous superfamily	20 — Ribokinase

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Unit-cell length a length_a	53.920 Å
Unit-cell length b length_b	101.180 Å
Unit-cell length c length_c	73.330 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	95.26 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	6

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.2060
R_work r_work	0.2060
R_free r_free	0.2420

CRYSTAL STRUCTURE OF NATIVE THIAZOLE KINASE IN THE MONOCLINIC FORM

1. Protein Identity and Related Structures Protein Identity & Related Structures

Hydroxyethylthiazole kinase

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1c3q__assembly_1__model_1

1c3q__assembly_1__model_1 | I(q)

1c3q__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

CATH v4.4 (3 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF NATIVE THIAZOLE KINASE IN THE MONOCLINIC FORM

1. Protein Identity and Related Structures Protein Identity & Related Structures

Hydroxyethylthiazole kinase

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1c3q__assembly_1__model_1

1c3q__assembly_1__model_1 | I(q)

1c3q__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

CATH v4.4 (3 domains)

7. Citations (1)